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chemical compound

n.
1.(chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight

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    Idiom of the Day

    roll out the red carpet
    to welcome an important guest by putting a red carpet down for him or her to walk on
    They rolled out the red carpet when the Queen came for a visit.



    1.
    It is (a) / nothing else (b) / than foolishness. (c) / No error (d)

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    If the chemical sodium is dropped into water and a match is taken to the mixture, it will immediately and violently ignite.      .. More >>
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